Liquid-coating machine.



G. H BENEDICT. LIQUID COATING MACHINE.-

APPLICATION FILED JULY 14. 1909.

Patented Mar. 15,1910.

2 SHEETS-SHEET 1.

HIIIIIIIIINI Illllll mllllllllllllNlll G. H. BENEDICT.

LIQUID COATING MACHINE.

APPLICATION FILED JULY 14. 1909.

952,093, Patented Mar. 15, 1910.

2 SHEETS-SHEET 2.

- GEORGE E. BENEDICT, OF CHICAGO, ILLINOIS, ASSIGNOR TO I BUFFALQ, NEWYORK.

UNITED. sTArns PATENT orrrc.

ANDREW R. KOEHLER, OF

' LIQUID-COATING MACHINE.

Specification of Letters Patent.

fication.

This invention relates more particularly to improvements in liquidcoating machines which are used in electrotype work for coating waxmatrices with a black lead solution, but the invention is alsoapplicable for coating other articles with other materials.

The object of the invention is to provide I a simple and economicalmachine for this purpose in which the coating material in liquid formwill be equally and uniformly distributed over the surface to be coatedand a thin and even layer of the material will be deposited upon allparts thereof; and also to construct and arrange the liquid distributinmeans so as to insure av thorough and perfect coating of the side facesas well as the top face of the projecting portions of the matrix. In theaccompanying drawings, consisting of two sheets: Figure 1 is a plan viewof a black leading machine embodying the invention. Fig. 2 is alongitudinal sectional elevation thereof in line 22, Fig. 1. Fig. 3 isatransverse sectional elevation/thereof in line 3-3, Fig. 1. Fig. 4 is afragmentary sectional elevation similar to Fig. 2, showing the parts indifferent position. Fig. 5 is a fragmentary section, on an enlargedscale, of the distributing device and ad- I j acent parts.

Like reference characters refer to like parts in the several figures.

A represents a tank for containing the black lead bath or solutioninwhich the matrix is placed, and B represents a suitable pump whlch isconnected with the tank A by an intake pipe I) and is provided Withadischarge pipe C connected to a distributing pipe, spout or device Dwhich is arranged transversely in the tank and has a discharge slot 03on its underside. The pump discharge pipe C preferably connects bybranches 0 c with the opposite ends of the distributing spout to insurea more nearly uniform discharge of the solution throughout the length ofthe spout. The tank A is kept partially filled with the black leadsolution and a constant circulation of this solution is maintained bythe pump B which draws the solution from the tank through the intakepipe I; and returns it thereto through the discharge pipe C and thedistributing spout D. The distributing spout D is preferably locatedsome distance below the top of the tank so as to be submerged in thesolution and close to the matrix, which is also submerged. This preventsthe discharge of the distributing spout from spattering when itstrikesthe matrix.

The wax matrix or other article to be coated is placed in the tank A andis caused to reciprocate slowly therein beneath the distributing spoutD. Any suitable mechanism may be employed for this purpose. In theconstruction shown, a carriage or tray E is movably mounted within thetank A, having end rollers c which travel on inclined tracks 6' on thesides of the tank, and the wax matrix rests upon this carriage. Apivoted rod or link Gr connects this carriage with one of the links of asprocket chain H which travels over sprocket wheels h and h. Thesprocket wheel h is journaled in a suitable bearing 7& secured to thebottom of the tank, and the wheel i2. is mounted upon a drive shaft Iwhich is journaled in suitable bearings i in the tank. The shaft Iextends through one side of the tank and is operatively connectedthrough the medium of a suitablespeed reducing gearing is with a drivepulley K which is belted to the drive shaft of the pump B. Thismechanism produces a slow speed of the carriage operating shaft relativeto that of the pump shaft, and causes the carriage E to reciprocateslowly beneath the distributing spout.

In order that the full effect of the discharge stream from the spout Dmay be received by all parts of the matrix, the pipe D is mounted in thebranch pipes c 0 so that it can be turned to direct its dischargeagainst the matrix in a direction opposed to the direction of movementof the matrix and at an an le thereto. Suitable means are provided orturning the spout D to one position'while the carriage is traveling inone direction and for turning it to'the other position during theopposite travel of the carriage. As shown in Figs. 1, 2 and 4:,the spoutD is provided at one end with a depending rig1d arm L, and the carriageE has lugs or parts Z at its upper and lower Patented Mar. 15. 1910.Application filed July 14, 1909. Serial No. 507,502:

ends which engage this arm when the carriage has nearly reached the endof its movement in either direction, and turn the spout D so that itsdischarge slot will direct the discharge against the matrix in adirection opposite to its movement.

. By reason of the construction and action of the distributing spout,the discharge is forced against the sides as well as the top faces ofthe projections and depressions in the surface of the matrix, thusinsuring a thorough coating of all parts thereof.

The construction and arrangement of the distributing spout and carriagefor the ma trix in the tank are such that the liquid is dischargedevenly and uniformly from the spout upon all parts of the matrix Withoutany splashing or spattering thereof. During the movement of the matrixback and forth in the tank all parts of brought within close proximityto'the distributing spout so that the full force of the dischargingliquid is received thereon. The inclined tracks upon which the carriagetravels extend .to the top of the tank at one end and the matrix can beeasily placed upon and removed from the carriage when it is at the upperend of its reciprocating movement. The bottom of the tank is alsopreferably inclined, as shown in Fi s. 2 and 4, the intake pipe I) beinglocated in the lowest portion of the tank. This reduces the amount ofsolution required for the tank and causes the solution to constantlyflow toward the lower end of the tank, thus keeping all parts of thesolution in circulation and preventing any settling of the black leadupon the bottom of the tank.

I claim as my invention:

1. In a liquid coatin machine, the combination of a tank, a distributingspout arranged to discharge the liquid into said tank, and means forsupportin to be coated in an inclined position in said tank and formoving the same past the distributing spout in a direction opposite tothe direction of movement of the discharge from said spout,substantially as set forth.

its surface are the article support, substantially as set 2. In a liquidcoating machine, the combination of a tank, a movable support in saidtank for the article to be coated, means for reciprocating said support,a swiveled s out arranged transverse y in said tank a ove said supportand having a discharge opening in its underside, means for supplying theliquid to said spout, and means operated by said support for turningsaid spout to direct the li from against the artic e in a directionopposite to the direction of movement of said forth.

3. In a liquid coating machine, the combination of a tank, means forsupporting and moving the article to be coated in,the tank, and a spoutarranged transversely in the tank to discharge the coating liquidagainst the article in a direction opposite to the direction of movementof the article, substantially as set forth.

4. In aliquid coating machine, the combination of a tank, means forsupporting and reciprocating the article to be coated in the tank, aliquid distributing spout, and means for moving the spout to direct theliquid against the article in a direction 0pposite to the direction ofmovement of the article in its travel in both directions in said tank,substantially as set forth.

5. In a liquid coating machine, the com bination of a tank, means forsupporting and reciprocating the article to be coated in the tank, atransverse swiveled distributing spout, and means operated by the saidsupporting means for turning the spout to direct the liquid against thearticle to be coated in a direction opposite to the direction ofmovement of the article in its travel in both directions in said tank,substantially as set forth.

GEORGE H. BENEDICT.

uid discharged there- Witness my hand, this 2nd day of July,

